system

  1. T

    h/w cylinder compatible with future heat pump system?

    Hi We urgently need to get our h/w cylinder replaced because it's leaking. Our current system is oil boiler feeding underfloor downstairs, radiators upstairs and an unvented hot water cylinder for hot water. We are thinking of moving to a heat pump at some point but aren't ready to do this. My...
  2. D

    There must be a better system design than this

    This is a picture of my sons sink plumbing. The yellow arrow goes to the dishwasher and the red arrow goes to the washing machine. There is a problem with waste water going from the sink, into the washing machine I guess because the pipe, right on the elbow isn't high enough. I have tried to...
  3. S

    New boiler to be fitted and low level UFH system

    I recently purchased the ground floor of a detached Victorian property in Dorset. As part of the refurb, I will need a new boiler and about 94m2 of low level UFH. The flooring is currently very solid floor boards.
  4. A

    GAH Electrastream boiler, low pressure level, how to top up system?

    Can anyone help me identify which tap/connection it is to top up the system as the level has dropped quite a way below the red marker for the cold fill pressure on the gauge? Boiler was installed approx. 2014. I've looked in the manual & online but can't find anything. Many thanks
  5. monkeydust

    Unvented System - Noise Issue

    Anyone know what might be causing this situation please? We have replaced the EV and non-return valve but still happens. Normal static pressure on that gauge is 2.5 but it builds up overnight to 3+ and then the problem occurs. Were a bit lost and had a few engineers look at it. At this...
  6. nick_p

    Vaillant Ecotec system boiler with VR66 and Opentherm (VR33 and Nest)

    Hi everyone, Just wanted to share my experience with "upgrading" an S plan setup to Opentherm and Vaillant Control Center (VR66). There are a few threads on a few different forums but I wanted to share a full write-up with all the steps needed, benefits and costs. Overall, I fully recommend...
  7. W

    Taking forever to pressurise gravity fed system. Why is this?

    Hello, I live in a two floor semi with a gravity fed conventional gas fired boiler (Potterton Kingfisher MF). The boiler is fed cold water from the loft water reservoir tank (which also feeds the cold water taps in the bathroom & the WC cistern). There is an expansion vessel attached to this...
  8. W

    Red sludge in Openvented CH system

    I have flushed a CH system removed each Rad and removed any residue of black sludge filled the system up and treated with inhibitor. However after 2 days the water in the Overhead tank is gone red. The Ground floor rads are piping hot and the upstairs are Luke warm bleed the rads still no joy...
  9. Z

    Vaillant System Boiler With Additional Pump

    Hi, i've got a job with a Vaillant Ecotec 630 system boiler, and i don't know the full history but the house has definitely been extended significantly since the boiler was installed. There's now 21 radiators/towel rails. It's getting to temperature, but even after balancing, it's not heating...
  10. paulusgg

    Low loss header in a central heating system

  11. J

    Towel heaters not getting hot in small pipe system

    I have just moved into a late 1990s new-build house with a small bore (about 1/2" OD pipes) gas fired boiler central heating system. All the normal radiators get hot but two of the three towel heater/radiators don't get hot and the pipes feeding them are cool to the touch even after the boiler...
  12. C

    Renewing inhibitor in underfloor heating system.

    We have a Daikin Air Source heat pump feeding our hot water and under-floor 8 port manifold heating system. The Daikin has just had its annual service and the engineer commented that the water looked discoloured and that the inhibitor needed replacing?? Is this an easy procedure? I'm pretty...
  13. B

    What is the problem with my oil central heating system?

    Context for issue: Last winter the temperature switch on my boiler shorted somehow, the boiler was then running WAY too hot and ended up blowing/melting a hole in one of the pipes. I repaired this by putting in a new stretch of pipe in and just connecting it to the existing pipes with two...
  14. B

    What is the problem with my central heating system?

    Context for issue: I'd like to start by saying I'd rather not read 100 "Hire a professional comments", I will do that when/if it comes to it, but I'd like to do it myself if possible. All images for system here: https://*********/a/ngPQkre Last winter the temperature switch on my boiler...
    • Butchy10
    • Thread
    • central central heating heating heating system system
    • Replies: 0
    • Forum: Central Heating Forum
  15. S

    hot water not staying hot in an unvented system

    hello we have an unvented system. we have an issue where the hot water is hot for 10 seconds and then luke warm, turn off taps / wait and turn back and it repeats itself. had boiler checked and told it was the expansion vessel. Had the expansion vessel drained and recharged. plumber told me...
  16. F

    Wood Burner back boiler with gravity rad system.

    Hi All...thx for the help in advance. I have recently installed a wood burner with back boiler heating system. Set up with gravity rad and header tank in loft. I have a recirculation pump installed that I have connected to the rad system that I turn on and off manually. I wanted to know how...
  17. I

    Viessmann 100-W System With Evohome

    Morning, I have a job later this week with the above , Viessmann Vitodens System boiler. It has a 4 pipe setup with internal diverter and at present there is a wireless thermostat/programmer controller in the hallway. Customer wants a Honeywell Evohome System and I just wondered if I can wire...
  18. J

    Heating won’t come on after draining system

    Hi, I drained the the central heating, to remove a radiator. After refilling it, the heating now won’t work. It’s a combi . I’m getting this symbol
  19. W

    Old radiant heater system bleed valves

    Hi, I'm in New Mexico US... I have a fifties boiler with floorboard radiant hydronic heating. The old valves are corroded and not working. I have found a bushing valve combo that has same threading but different profile. Please anyone knows of source for old valve types... Or, can the new...
  20. B

    Boiler short cycling in system with hot water tank

    Issue with boiler short cycling in system with hot water tank. We have an ideal heating logic heat2 h15 boiler which feeds a hot water tank upstairs in the house. We have an issue where if the boiler isn’t set to 80c then the boiler will short cycle, the hot water tank thermostat is set at...
    • Boiler short cycling
    • Thread
    • boiler hot water system tank water water tank
    • Replies: 10
    • Forum: Boiler Advice Forum

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